Year	% (national estimate)
2002	43.666
2004	39
2005	39.608
2007	30.693
2008	39.392
2009	38.912
2010	39.437
2011	45.271
2012	43.23
2013	38.04
2014	37.157
2015	38.983
2016	42.536
2017	43.369
2018	45.223
2019	46.891